(H(((2z-1)/(Tz+1)))=((a(((2z-1)/(Tz+1)))+1)/(b(((2z-1)/(Tz+1)))+1))=((a(2(z-1))+T(z+1))/(b(2(z-1))+T(z+1)))=(((a 2+T)z+(T-a 2))/((b 2+T)z+(T-b 2)))(4))